Nike is showing off its latest technology for the upcoming 2012 Olympics in London and the focus seems to be: lighter, lighter and more lighter. The highlight tech was Flyknit, a sort of yarn and fabric material that is engineered to be featherweight, formfitting and virtually seamless.

It's pretty hard to appreciate just how blazingly fast top-tier marathon runners are going- for 26.2 miles. So this video ad for the NYC Marathon let you attempt a marathon pace for just 60 feet. Nobody could do it.